The Boundary State Formalism and Conformal Invariance in Off-shell String Theory

Details The Boundary State Formalism and Conformal Invariance in Off-shell String Theory The Boundary State Formalism and Conformal Invariance in Off-shell String Theory

2001-12-20

arxiv.org/abs/hep-th/0112203v1

JHEP 0311:021,2003

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 0 figures

Scientific paper

10.1088/1126-6708/2003/11/021

We present a generalization of the boundary state formalism for the bosonic string that allows us to calculate the overlap of the boundary state with arbitrary closed string states. We show that this generalization exactly reproduces world-sheet sigma model calculations, thus giving the correct overlap with both on- and off-shell string states, and that this new boundary state automatically satisfies the requirement for integrated vertex operators in the case of non-conformally invariant boundary interactions.

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